Hair accessory



FIG. 1 is a perspective view of a hair accessory showing my new design thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a sectional plan view taken along line 4 of FIG. 2 thereof; and,

FIG. 5 is a sectional plan view taken along line 5 of FIG. 2 thereof.

The broken lines shown in the figures depict portions of the hair accessory that form no part of the claimed design. 

CLAIM The ornamental design for a hair accessory, as shown and described. 